MSFS20 Requesting help on crashing code (XML) for ILS

SpoorObjecten · 7 Sep 2020

Hi everyone,

Jon pointed me to FSDevelopers for some help regarding ILS code, it seems the smart people are on this forum

I’ve been able to use the sample navdata xml to get RNAV to work on my airport successfully.
However for some reason I’m not able to get ILS to work without the game to crash if I select ILS as approach on the map or when using it “ingame” on the mcdu.

Would someone be willing to have a quick look and see if you notice a mistake on my side?

<Ils lat="51.46264214643296" lon="5.38847719873592" alt="16" heading="35" frequency="109.750" magvar="0.0" ident="EHZ" width="5.0" name="ILS 03"/>
<Ils lat="51.43754817602908" lon="5.36035286546155" alt="16" heading="215" frequency="109.750" magvar="0.0" ident="EHO" width="5.01" name="ILS 21"/>

<Waypoint lat="51.408056" lon="5.327500" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH558"/>
<Waypoint lat="51.540000" lon="5.475556" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH567"/>
<Waypoint lat="51.564167" lon="5.502778" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH568"/>
<Waypoint lat="51.621944" lon="5.202500" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH582"/>
<Waypoint lat="51.511389" lon="5.443333" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH584"/>
<Waypoint lat="51.341111" lon="5.859167" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH585"/>
<Waypoint lat="51.504444" lon="5.896944" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH589"/>
<Waypoint lat="51.603333" lon="5.856389" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH591"/>
<Waypoint lat="51.620000" lon="5.345000" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH594"/>
<Waypoint lat="51.510556" lon="5.706667" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="EH596"/>
<Waypoint lat="51.546639" lon="5.646175" magvar="0.0" waypointType="NAMED" waypointRegion="EH" waypointIdent="GEMTI"/>

<Approach type="RNAV" runway="21" fixType="TERMINAL_WAYPOINT" fixRegion="EH" fixIdent="EH567" altitude="2000.0F" heading="215" missedAltitude="3000.0F">
<ApproachLegs>
<Leg type="IF" fixType="WAYPOINT" fixRegion="EH" fixIdent="GILIV" altitudeDescriptor="+" altitude1="2000.0F"/>
<Leg type="TF" fixType="TERMINAL_WAYPOINT" fixRegion="EH" fixIdent="EH567" flyOver="FALSE" magneticCourse="0.0" altitudeDescriptor="+" altitude1="2000.0F"/>
<Leg type="TF" fixType="RUNWAY" fixRegion="EH" fixIdent="RW21" flyOver="TRUE" magneticCourse="0.0" altitudeDescriptor="A" altitude1="26.0F"/>
</ApproachLegs>
<MissedApproachLegs>
<Leg type="CA" magneticCourse="95.0" altitudeDescriptor="+" altitude1="2000.0F"/>
<Leg type="DF" fixType="WAYPOINT" fixRegion="EH" fixIdent="EH558" flyOver="TRUE" turnDirection="R" altitudeDescriptor="+" altitude1="3000.0F"/>
<Leg type="HM" fixType="WAYPOINT" fixRegion="EH" fixIdent="EH558" turnDirection="R" magneticCourse="214" distance="4.0N" altitudeDescriptor="+" altitude1="3000.0F"/>
</MissedApproachLegs>

</Approach>
<Approach type="ILS" runway="21" fixType="TERMINAL_WAYPOINT" fixRegion="EH" fixIdent="EH584" altitude="1330.0F" heading="215" missedAltitude="5000.0F">
<ApproachLegs>
<Leg type="IF" fixType="WAYPOINT" fixRegion="EH" fixIdent="EH568" recommendedType="LOCALIZER" recommendedRegion="EH" recommendedIdent="EHO" theta="215" rho="7.9N" altitudeDescriptor="I" altitude1="2000.0F" altitude2="2000.0F"/>
<Leg type="CF" fixType="TERMINAL_WAYPOINT" fixRegion="EH" fixIdent="EH584" flyOver="FALSE" recommendedType="LOCALIZER" recommendedRegion="EH" recommendedIdent="EHO" theta="215" rho="7.300000000000001N" magneticCourse="215" distance="4.0N" altitudeDescriptor="A" altitude1="1330.0F"/>
<Leg type="CF" fixType="RUNWAY" fixRegion="EH" fixIdent="RW21" flyOver="TRUE" recommendedType="LOCALIZER" recommendedRegion="EH" recommendedIdent="EHO" theta="215" rho="1.4000000000000001N" magneticCourse="215" distance="5.9N" altitudeDescriptor="A" altitude1="16.0F"/>
</ApproachLegs>
</Approach>

so while RNAV in this the code above does work, ILS doesn’t and crashes the game.
It’s pretty much a copy of the sample xml file for navdata, so I’m not sure where I’m failing?

Just for your information, I'm currently building Eindhoven Airport which is missing from the game, using Custom designed buildings (no googlemaps copies)

xr219 · 7 Sep 2020

It’s a bit of a guess, I did have something like this years ago in FSX and it was an issue with a clash with another object in the sim. Now I can’t remember if it was frequency or Ident, but it turned out something else nearby was clashing with what I had set. Given that the new sim seems to have assigned lots of ICAO codes incorrectly, it’s possible theyve done the same thing with frequencies or idents

SpoorObjecten · 14 Sep 2020

So I found out what caused these crashes to happen finally last night, but it raised another;

By moving the waypoints to after </airport> but before </fsdata>
It did not crash my game anymore when selecting ILS as approach during the flightplanning process.

However it did start another issue;
When I had the waypoints in <airport> data, upon approach the ATC would tell me to do an RNAV landing or give me the option to do another approach like ILS (though that one caused a crash).
However when i moved the waypoints to after </airport> ATC would only give me Visual Approach as option during landing, but I was able to select ILS approach on flightplanning.

So as you can read, by moving it I fixed one thing but broke another
Last but not least, if I open the airport in dev mode (project and open the scene), when saving the scene it removes the waypoints as they are after </airport>

I'm very confused

Szpike · 16 Sep 2020

I believe that specifying an approach leg as fixType TERMINAL_WAYPOINT implies that the <Waypoint> is defined within the <Airport> stanza, whereas WAYPOINT implies it is a top-level <Waypoint> outside of an <Airport>.

So if you straighten that out, I suspect that might fix the problem.

Chrillew · 18 Sep 2020

so how how did you do to get it to work ? my game crashes when i select for example ils 14 as approach

Dutchta · 18 Sep 2020

Chrillew said:
so how how did you do to get it to work ? my game crashes when i select for example ils 14 as approach

Im having the same problem so please let us know!

Dutchta · 18 Sep 2020

Chrillew said:
so how how did you do to get it to work ? my game crashes when i select for example ils 14 as approach

Okay i fixed it. It is what @Szpike said you need to fix those waypoints. Also i found a handy link PDF with the leg/waypoint types it downloads a zip but dont worry it just has a pdf.

Amorisia · 23 May 2021

Hi everyone,

I just found this post because I am having the same issue with all my ILS. All were working perfectly until I add Arrivals to my first airport with its associated waypoints. Then, after having changed the initial fix of the first ILS approach to the last waypoint of an arrival, all ILS remained selectable, but the ATC always give me visual approach in game. I tried to delete all my changes and got back the initial file, ATC still give me visual approach for my ILS. According to me, everything is the same as the previous working version of the file. But maybe there is something I missed as I just spent 9 hours to try to find the reason. Here is the code, everything is in the Airport element :

XML:

<Runway groupIndex="1921" lat="30.30708563628368" lon="104.42537160110443" alt="442.00001336820424" heading="22.16500473022461" length="4028.17089843750000" width="60.00000000000000" patternAltitude="304.79998779296875" surface="{2E0DE83F-B79A-4435-905C-DCBBEAC55C59}" transparent="FALSE" number="01" designator="NONE" primaryLanding="TRUE" primaryTakeoff="TRUE" primaryPattern="LEFT" secondaryLanding="TRUE" secondaryTakeoff="TRUE" secondaryPattern="RIGHT" primaryMarkingBias="0.00000000000000" secondaryMarkingBias="0.00000000000000" groundMerging="TRUE" excludeVegetationAround="TRUE">
    <Ils lat="30.29287730540600" lon="104.41870710655347" alt="430" end="PRIMARY" range="50017" ident="CTF" magvar="357.8" heading="25" frequency="108.9" width="5.0" name="ILS RWY01" backCourse="FALSE">
        <Dme lat="30.29463900000000" lon="104.41947399999999" alt="430" range="60000"/>
        <GlideSlope lat="30.29463900000000" lon="104.41947399999999" alt="430" pitch="3.0" range="40000"/>
    </Ils>
    <Ils lat="30.32128555906044" lon="104.43203034494982" alt="430.00452850293368" end="SECONDARY" range="50017" ident="CTU" magvar="357.8" heading="205" frequency="108.95" width="5.0" name="ILS RWY19" backCourse="FALSE">
        <Dme lat="30.31935000000000" lon="104.43111600000000" alt="430" range="60000"/>
        <GlideSlope lat="30.31935000000000" lon="104.43111600000000" alt="430" pitch="3.000000" range="40000"/>
    </Ils>
</Runway>
<Runway groupIndex="1922" lat="30.29099523693573" lon="104.44475513479007" alt="442" heading="22.13757705688477" length="3235.87841796875000" width="45.00000000000000" patternAltitude="304.79998779296875" surface="{2E0DE83F-B79A-4435-905C-DCBBEAC55C59}" transparent="FALSE" number="02" designator="NONE" primaryLanding="TRUE" primaryTakeoff="TRUE" primaryPattern="RIGHT" secondaryLanding="TRUE" secondaryTakeoff="TRUE" secondaryPattern="LEFT" primaryMarkingBias="0.00000000000000" secondaryMarkingBias="0.00000000000000" groundMerging="TRUE" excludeVegetationAround="TRUE">
    <Ils lat="30.28010578421759" lon="104.43963855059955" alt="390" end="PRIMARY" range="50017" ident="ZTF" magvar="357.8" heading="25" frequency="111.3" width="5.0" name="ILS RWY02" backCourse="FALSE">
        <Dme lat="30.29097000000000" lon="104.44473700000000" alt="390" range="60000"/>
        <GlideSlope lat="30.29097000000000" lon="104.44473700000000" alt="390" pitch="3.0" range="40000"/>
    </Ils>
    <Ils lat="30.30187516178756" lon="104.44985986892563" alt="390" end="SECONDARY" range="50017" ident="ZTU" magvar="357.8" heading="205" frequency="111.35" width="5.0" name="ILS RWY20" backCourse="FALSE">
        <Dme lat="30.29097000000000" lon="104.44473700000000" alt="390" range="60000"/>
        <GlideSlope lat="30.29097000000000" lon="104.44473700000000" alt="371" pitch="3.000000" range="40000"/>
    </Ils>
</Runway>

<Waypoint lat="30.19241146870410" lon="104.37140833238600" magvar="357.8" waypointType="FAF" waypointRegion="TF" waypointIdent="TF502"/>
<Waypoint lat="30.09179600000000" lon="104.32429100000000" magvar="357.8" waypointType="NAMED" waypointRegion="TF" waypointIdent="TF503"/>
<Waypoint lat="30.42177286446640" lon="104.47929345150200" magvar="357.8" waypointType="FAF" waypointRegion="TF" waypointIdent="TF102"/>
<Waypoint lat="30.52236686446640" lon="104.52644645150200" magvar="357.8" waypointType="NAMED" waypointRegion="TF" waypointIdent="TF103"/>
<Waypoint lat="30.17959701010760" lon="104.39241111166100" magvar="357.8" waypointType="FAF" waypointRegion="TF" waypointIdent="TF702"/>
<Waypoint lat="30.07898154140350" lon="104.34529377927500" magvar="357.8" waypointType="NAMED" waypointRegion="TF" waypointIdent="TF703"/>
<Waypoint lat="30.40238393589760" lon="104.49708730786500" magvar="357.8" waypointType="FAF" waypointRegion="TF" waypointIdent="TF302"/>
<Waypoint lat="30.50299940460170" lon="104.54420464025100" magvar="357.8" waypointType="NAMED" waypointRegion="TF" waypointIdent="TF303"/>

<Approach type="ILS" runway="01" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF502" altitude="5000.0F" heading="024.495" missedAltitude="5000.0F">
    <ApproachLegs>
        <Leg type="IF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF503" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="CTF" theta="024.495" rho="14.05N" altitudeDescriptor="I" altitude1="5000.0F" altitude2="5000.0F"/>
        <Leg type="CF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF502" flyOver="FALSE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="CTF" theta="024.495" rho="7.55N" magneticCourse="024.495" distance="6.5N" altitudeDescriptor="A" altitude1="5000.0F"/>
        <Leg type="CF" fixType="RUNWAY" fixRegion="TF" fixIdent="RW01" flyOver="TRUE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="CTF" theta="024.495" rho="1.05N" magneticCourse="024.495" distance="6.5N" altitudeDescriptor="A" altitude1="442M"/>
    </ApproachLegs>
    <MissedApproachLegs>
        <Leg type="CA" magneticCourse="024.495" altitudeDescriptor="+" altitude1="5000.0F"/>
        <Leg type="DF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF102" flyOver="TRUE" turnDirection="L" altitudeDescriptor="A" altitude1="5000.0F"/>
        <Leg type="HM" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF102" turnDirection="L" magneticCourse="204.495" time="1.0" altitudeDescriptor="A" altitude1="5000.0F"/>
    </MissedApproachLegs>
</Approach>
<Approach type="ILS" runway="19" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF102" altitude="3500.0F" heading="204.495" missedAltitude="5000.0F">
    <ApproachLegs>
        <Leg type="IF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF103" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="CTU" theta="204.495" rho="14.05N" altitudeDescriptor="I" altitude1="3500.0F" altitude2="3500.0F"/>
        <Leg type="CF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF102" flyOver="FALSE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="CTU" theta="204.495" rho="7.55N" magneticCourse="204.495" distance="6.5N" altitudeDescriptor="A" altitude1="3500.0F"/>
        <Leg type="CF" fixType="RUNWAY" fixRegion="TF" fixIdent="RW01" flyOver="TRUE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="CTU" theta="204.495" rho="1.05N" magneticCourse="204.495" distance="6.5N" altitudeDescriptor="A" altitude1="442M"/>
    </ApproachLegs>
    <MissedApproachLegs>
        <Leg type="CA" magneticCourse="204.495" altitudeDescriptor="+" altitude1="5000.0F"/>
        <Leg type="DF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF502" flyOver="TRUE" turnDirection="R" altitudeDescriptor="A" altitude1="5000.0F"/>
        <Leg type="HM" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF502" turnDirection="R" magneticCourse="024.495" time="1.0" altitudeDescriptor="A" altitude1="5000.0F"/>
    </MissedApproachLegs>
</Approach>
<Approach type="ILS" runway="02" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF702" altitude="3500.0F" heading="024.4676" missedAltitude="5000.0F">
    <ApproachLegs>
        <Leg type="IF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF703" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="ZTF" theta="024.4676" rho="14.05N" altitudeDescriptor="I" altitude1="3500.0F" altitude2="3500.0F"/>
        <Leg type="CF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF702" flyOver="FALSE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="ZTF" theta="024.4676" rho="7.55N" magneticCourse="024.4676" distance="6.5N" altitudeDescriptor="A" altitude1="3500.0F"/>
        <Leg type="CF" fixType="RUNWAY" fixRegion="TF" fixIdent="RW02" flyOver="TRUE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="ZTF" theta="024.4676" rho="1.05N" magneticCourse="024.4676" distance="6.5N" altitudeDescriptor="A" altitude1="442M"/>
    </ApproachLegs>
    <MissedApproachLegs>
        <Leg type="CA" magneticCourse="024.4676" altitudeDescriptor="+" altitude1="5000.0F"/>
        <Leg type="DF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF302" flyOver="TRUE" turnDirection="R" altitudeDescriptor="A" altitude1="5000.0F"/>
        <Leg type="HM" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF302" turnDirection="R" magneticCourse="204.4676" time="1.0" altitudeDescriptor="A" altitude1="5000.0F"/>
    </MissedApproachLegs>
</Approach>
<Approach type="ILS" runway="20" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF302" altitude="3500.0F" heading="204.4676" missedAltitude="5000.0F">
    <ApproachLegs>
        <Leg type="IF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF303" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="ZTU" theta="204.4676" rho="14.05N" altitudeDescriptor="I" altitude1="3500.0F" altitude2="3500.0F"/>
        <Leg type="CF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF302" flyOver="FALSE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="ZTU" theta="204.4676" rho="7.55N" magneticCourse="204.4676" distance="6.5N" altitudeDescriptor="A" altitude1="3500.0F"/>
        <Leg type="CF" fixType="RUNWAY" fixRegion="TF" fixIdent="RW02" flyOver="TRUE" recommendedType="LOCALIZER" recommendedRegion="TF" recommendedIdent="ZTU" theta="204.4676" rho="1.05N" magneticCourse="204.4676" distance="6.5N" altitudeDescriptor="A" altitude1="442M"/>
    </ApproachLegs>
    <MissedApproachLegs>
        <Leg type="CA" magneticCourse="204.4676" altitudeDescriptor="+" altitude1="5000.0F"/>
        <Leg type="DF" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF702" flyOver="TRUE" turnDirection="L" altitudeDescriptor="A" altitude1="5000.0F"/>
        <Leg type="HM" fixType="TERMINAL_WAYPOINT" fixRegion="TF" fixIdent="TF702" turnDirection="L" magneticCourse="024.4676" time="1.0" altitudeDescriptor="A" altitude1="5000.0F"/>
    </MissedApproachLegs>
</Approach>

Many thanks for your help